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<!DOCTYPE html>
<html lang="en" data-theme="light">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>HongLin He</title>
<link rel="stylesheet" href="/assets/style.css">
<script src="/assets/i18n.js"></script>
</head>
<body>
<nav class="site-nav">
<a href="/" class="nav-brand">HongLin He</a>
<div class="nav-links">
<a href="/papers.html" data-i18n="nav_papers">Papers</a>
<a href="/projects.html" data-i18n="nav_projects">Projects</a>
<a href="/awards.html" data-i18n="nav_awards">Awards</a>
<a href="/cv.html" data-i18n="nav_cv">CV</a>
</div>
<div class="nav-controls">
<select id="lang-select" onchange="switchLang(this.value)">
<option value="en">English</option>
<option value="zh-CN">中文简体</option>
<option value="zh-TW">中文繁體</option>
<option value="ja">日本語</option>
<option value="ko">한국어</option>
<option value="fr">Français</option>
<option value="de">Deutsch</option>
<option value="es">Español</option>
</select>
<button class="theme-toggle" onclick="toggleTheme()" title="Toggle dark mode">🌙</button>
</div>
</nav>
<main class="container">
<!-- Hero -->
<section class="hero">
<div class="hero-avatar-wrapper">
<img class="hero-avatar" src="https://avatars.githubusercontent.com/u/57283862?v=4" alt="HongLin He">
</div>
<h1>HongLin He</h1>
<p class="tagline" data-i18n="tagline">Independent researcher in hyperbolic geometry, quantum-inspired IR, and LLM context extension</p>
<div class="hero-links">
<a href="mailto:hehonglin525@gmail.com">✉ Email</a>
<a href="https://github.com/ViewWay">⌘ GitHub</a>
<a href="https://viewway.github.io/UCEF/">📄 UCEF Docs</a>
</div>
<div class="scroll-indicator">↓</div>
</section>
<hr class="section-divider">
<!-- Research Interests -->
<section class="animate-on-scroll">
<h2 data-i18n="research_interests">Research Interests</h2>
<div class="interest-grid">
<div class="interest-card">
<h3>Hyperbolic Geometry</h3>
<p data-i18n="interest_hyperbolic">Poincaré ball embeddings for hierarchical document retrieval in RAG systems</p>
</div>
<div class="interest-card">
<h3>Quantum-Inspired IR</h3>
<p data-i18n="interest_quantum">Density matrix representations and measurement collapse for context selection</p>
</div>
<div class="interest-card">
<h3>LLM Context Extension</h3>
<p data-i18n="interest_llm">Adaptive compression with closed-loop quality feedback for long-context processing</p>
</div>
<div class="interest-card">
<h3>Embedded Systems</h3>
<p data-i18n="interest_embedded">Rust/Zig firmware for smart energy metering on Cortex-M0+</p>
</div>
</div>
</section>
<hr class="section-divider">
<!-- UCEF Highlight -->
<section class="animate-on-scroll">
<h2 data-i18n="ucef_title">UCEF: Universal Context Extension Framework</h2>
<div class="highlight-card">
<p data-i18n="ucef_desc">I designed UCEF, a model-agnostic framework enabling any LLM to process documents far exceeding its native context window through hyperbolic retrieval, quantum-inspired selection, adaptive compression, and quality feedback.</p>
<p><strong data-i18n="ucef_results">Results on LongBench (8 tasks × 30 samples/task × 2 models):</strong></p>
<table class="results-table">
<thead>
<tr>
<th>Model</th>
<th>Method</th>
<th>ROUGE-L</th>
<th>TokenF1</th>
<th data-i18n="th_vs_rag">vs RAG</th>
</tr>
</thead>
<tbody>
<tr><td>GLM-4-flash</td><td>RAG top-k</td><td>0.1340</td><td>0.1498</td><td>—</td></tr>
<tr class="highlight"><td>GLM-4-flash</td><td><strong>UCEF</strong></td><td><strong>0.1479</strong></td><td><strong>0.1671</strong></td><td><strong>+10.3%</strong></td></tr>
<tr><td>DeepSeek-v3</td><td>RAG top-k</td><td>0.1800</td><td>0.1919</td><td>—</td></tr>
<tr class="highlight"><td>DeepSeek-v3</td><td><strong>UCEF</strong></td><td><strong>0.2146</strong></td><td><strong>0.2306</strong></td><td><strong>+19.3%</strong></td></tr>
</tbody>
</table>
<p><strong data-i18n="ucef_sig">Statistical significance (DeepSeek-v3):</strong> Wilcoxon p=0.011, paired t-test p=0.007</p>
<div class="card-links">
<a href="https://github.com/ViewWay/UCEF">GitHub</a>
<a href="https://viewway.github.io/UCEF/" data-i18n="link_docs">Documentation</a>
<a href="/papers.html" data-i18n="link_paper">Paper</a>
</div>
</div>
</section>
<hr class="section-divider">
<!-- Stats -->
<section class="animate-on-scroll">
<h2 data-i18n="stats_title">By the Numbers</h2>
<div class="stats-bar">
<div class="stat-item">
<div class="stat-number">6+</div>
<div class="stat-label" data-i18n="stats_projects">Projects</div>
</div>
<div class="stat-item">
<div class="stat-number">220K+</div>
<div class="stat-label" data-i18n="stats_loc">Lines of Code</div>
</div>
<div class="stat-item">
<div class="stat-number">8</div>
<div class="stat-label" data-i18n="stats_languages">Languages</div>
</div>
<div class="stat-item">
<div class="stat-number">1</div>
<div class="stat-label" data-i18n="stats_papers">Paper</div>
</div>
</div>
</section>
<hr class="section-divider">
<!-- Tech Stack -->
<section class="animate-on-scroll">
<h2 data-i18n="skills_title">Tech Stack</h2>
<div class="skills-section">
<div class="skills-category">
<h3 data-i18n="skills_languages">Languages</h3>
<div class="skills-tags">
<span class="skill-tag">Python</span>
<span class="skill-tag">Rust</span>
<span class="skill-tag">Zig</span>
<span class="skill-tag">TypeScript</span>
<span class="skill-tag">C</span>
<span class="skill-tag">Shell</span>
</div>
</div>
<div class="skills-category">
<h3 data-i18n="skills_ml">ML / AI</h3>
<div class="skills-tags">
<span class="skill-tag">PyTorch</span>
<span class="skill-tag">NumPy</span>
<span class="skill-tag">SciPy</span>
<span class="skill-tag">LangChain</span>
<span class="skill-tag">RAG</span>
</div>
</div>
<div class="skills-category">
<h3 data-i18n="skills_systems">Systems</h3>
<div class="skills-tags">
<span class="skill-tag">FreeRTOS</span>
<span class="skill-tag">Cortex-M0+</span>
<span class="skill-tag">io-uring</span>
<span class="skill-tag">Tauri 2</span>
</div>
</div>
<div class="skills-category">
<h3 data-i18n="skills_web">Web</h3>
<div class="skills-tags">
<span class="skill-tag">React</span>
<span class="skill-tag">FastAPI</span>
<span class="skill-tag">GitHub Pages</span>
</div>
</div>
</div>
</section>
<hr class="section-divider">
<!-- Featured Projects -->
<section class="animate-on-scroll">
<h2 data-i18n="section_projects">Featured Projects</h2>
<div class="project-gallery">
<div class="project-gallery-card">
<div class="proj-icon">🔬</div>
<h3>UCEF</h3>
<p class="proj-desc" data-i18n="proj_ucef_what">A model-agnostic framework that enables any LLM to process documents exceeding its context window.</p>
<div class="proj-stack">
<span>Python</span><span>NumPy</span><span>SciPy</span>
</div>
<a class="proj-link" href="https://github.com/ViewWay/UCEF">GitHub →</a>
</div>
<div class="project-gallery-card">
<div class="proj-icon">🔩</div>
<h3>Nexus</h3>
<p class="proj-desc" data-i18n="proj_nexus_short">Production-grade Rust web framework with custom io-uring async runtime, 58 crates, 220K+ lines.</p>
<div class="proj-stack">
<span>Rust</span><span>io-uring</span><span>epoll</span>
</div>
<a class="proj-link" href="/Nexus/">Documentation →</a>
</div>
<div class="project-gallery-card">
<div class="proj-icon">🐍</div>
<h3>ZPython</h3>
<p class="proj-desc" data-i18n="proj_zpython_short">Complete Python 3.15 interpreter in Zig with custom GC, PEG parser, and bytecode VM, 42K+ lines.</p>
<div class="proj-stack">
<span>Zig</span><span>CPython 3.15</span>
</div>
<a class="proj-link" href="/ZPython/">Documentation →</a>
</div>
<div class="project-gallery-card">
<div class="proj-icon">⚡</div>
<h3>FeMeter</h3>
<p class="proj-desc" data-i18n="proj_femeter_what">Rust firmware for FM33A0xx (Cortex-M0+) three-phase smart electricity meters.</p>
<div class="proj-stack">
<span>Rust</span><span>FreeRTOS</span><span>Embedded</span>
</div>
<a class="proj-link" href="https://github.com/ViewWay/FeMeter">GitHub →</a>
</div>
<div class="project-gallery-card">
<div class="proj-icon">🖥️</div>
<h3>DevPilot</h3>
<p class="proj-desc" data-i18n="proj_devpilot_what">A Tauri 2 desktop application for AI-powered development workflow management.</p>
<div class="proj-stack">
<span>Rust</span><span>Tauri 2</span><span>React</span>
</div>
<a class="proj-link" href="https://github.com/ViewWay/DevPilot">GitHub →</a>
</div>
<div class="project-gallery-card">
<div class="proj-icon">🤖</div>
<h3>HBE</h3>
<p class="proj-desc" data-i18n="proj_hbe_what">Multi-platform AI coding enhancement suite with 10 specialized agents, 13 skills, and Ralph autonomous loop.</p>
<div class="proj-stack">
<span>Shell</span><span>TypeScript</span><span>Python</span>
</div>
<a class="proj-link" href="/HBE/">Documentation →</a>
</div>
</div>
</section>
<hr class="section-divider">
<!-- Timeline -->
<section class="animate-on-scroll">
<h2 data-i18n="heading_updates">What have I been up to?</h2>
<ul class="timeline">
<li><strong>May 2026</strong> — <span data-i18n="update_may26">Real benchmark experiments: UCEF on LongBench with GLM-4-flash and DeepSeek-v3</span></li>
<li><strong>Apr 2026</strong> — <span data-i18n="update_apr26">FeMeter firmware Phase 1-4 complete, FreeRTOS 11.x migration done</span></li>
<li><strong>Mar 2026</strong> — <span data-i18n="update_mar26">UCEF v2026.5.2 released: all phases complete</span></li>
<li><strong>Jan 2026</strong> — <span data-i18n="update_jan26">Competitive analysis of hyperbolic RAG landscape</span></li>
</ul>
</section>
<hr class="section-divider">
<!-- Contact -->
<section class="animate-on-scroll">
<h2 data-i18n="heading_contact">Contact</h2>
<div class="contact-card">
<ul class="contact-list">
<li><a href="mailto:hehonglin525@gmail.com">✉ hehonglin525@gmail.com</a></li>
<li><a href="https://github.com/ViewWay">⌘ GitHub: ViewWay</a></li>
<li><a href="https://viewway.github.io/UCEF/" data-i18n="link_docs2">UCEF Documentation</a></li>
</ul>
</div>
</section>
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<footer class="site-footer">
<p>© 2026 HongLin He</p>
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